A conducting ring of radius `'r'` is rolling without slipping with a constant angular velocity `omega` (figure). If the magnetic field strengh is `B` and is directed into the page the emf induced across `PQ` is

A conducting ring of radius r having charge q is rotating with angular velocity omega about its axes. Find the magnetic field at the centre of the ring.

A conducting ring of radius r having charge q is rotating with angular velocity omega about its axes. Find the magnetic field at the centre of the ring.

A conducting ring of radius r having charge q is rotating with angular velocity omega about its axes. Find the magnetic field at the centre of the ring.

A non-conducting disk of radius R is rotating about its own axis with constant angular velocity omega in a perpendicular uniform magnetic field B as shown in figure. The emf induced between centre and rim of disk is

As shown in the figure, a disc of mass m is rolling without slipping with angular velocity omega . When it crosses point B disc will be in

As shown in the figure, a disc of mass m is rolling without slipping with angular velocity omega . When it crosses point B disc will be in

A conducting circular loop of radius r is rotated about its diameter at a constant angular velocity omega in a magnetic field B perpendicular to the axis of rotation. In what position of the loop is the induced emf zero?

A conducting circular loop of radius r is rotated about its diameter at a constant angular velocity omega in a magnetic field B perpendicular to the axis of rotation. In what position of the loop is the induced emf zero?